Ms. Jinqiao Wei Profile

Jinqiao Wei

at Qingdao Univ

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Proceedings Article | 21 July 2017 Paper

Text image authenticating algorithm based on MD5-hash function and Henon map

Jinqiao Wei, Ying Wang, Xiaoxue Ma

Proceedings Volume 10420, 104202W (2017) https://doi.org/10.1117/12.2281572

KEYWORDS: Digital watermarking

Read Abstract +

In order to cater to the evidentiary requirements of the text image, this paper proposes a fragile watermarking algorithm based on Hash function and Henon map. The algorithm is to divide a text image into parts, get flippable pixels and nonflippable pixels of every lump according to PSD, generate watermark of non-flippable pixels with MD5-Hash, encrypt watermark with Henon map and select embedded blocks. The simulation results show that the algorithm with a good ability in tampering localization can be used to authenticate and forensics the authenticity and integrity of text images

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